# 803: SPHAEROTILUS-LEPTOTHRIX MEDIUM ## Main sol. 803 1 g Yeast extract 1.5 g Peptone 0.2 g MgSO4 x 7 H2O 0.05 g CaCl2 0.5 g Ferric ammonium citrate 0.05 g MnSO4 x H2O 0.01 g FeCl3 x 6 H2O 20 g Agar 1000 ml Tap water 1. pH 7.1.